The original Mercedes-Benz is equipped with Harman/Kardon, but it may have fewer speakers than S600, Harman Hardon Logic7 surround sound, but there are some differences in details and the sound is almost the same. You can adjust the pitch on the main machine by yourself, with nine speakers (S600 is 14), two high notes in front, four doors, four alto, two bass in the back seat and a heavy bass in the back seat.